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Service Procedures 165
Appendix D
Recommended Test Equipment
The test equipment recommended for the performance verification and
adjustment procedures is listed below. If the exact instrument is not available,
use the accuracy requirements shown to select substitute calibration
standards.
Test Considerations
Verify that you have selected the correct power line voltage prior to
attempting any test procedure to ensure proper instrument operation.
For optimum performance, all test procedures should comply with the
following recommendations:
• Verify the function generator is set to its reset state (*RST).
• Assure that the calibration ambient temperature is stable and between
18° C and 28° C.
• Assure ambient relative humidity is less than 80%.
• Allow a 30 minute warm-up period before verification or adjustment.
• Use only RG-58 or equivalent 50 Ω cable.
• Keep cables as short as possible, consistent with the impedance
requirements.
Table D-1. Recommended Test Equipment
Instrument Requirements Recommended Model
Use
a
50 Ω feedthrough load 50 Ω ± 0.1 Ω Q,P,O,T
6 1/2 digit Digital
Multimeter (DMM)
20 VDC ± 0.01%
Integrating ACrms
10 VACrms ± 0.1%
Agilent 34401A Q,P,T
Thermal Voltage Converter
(50 Ω termination, 3V input)
or
Power Meter
or
Wideband ACrms Meter
1kHz to 15 MHz
100 kHz to 15 MHz
1 VAC rms ± 0.5%
1 kHz to 20 MHz
Ballantine 1395A-3
(or equivalent 3V TVC)
Agilent 437A with
Agilent 8482A
and 20 dB attenuator
—
Q,P
Frequency Meter 1 ppm accuracy Agilent 53131A Q,P,T
Oscilloscope 100 MHz Agilent 54602A T
Spectrum Analyzer Response to 90 MHz Agilent 3588A O
a.
Q = Quick Verification O= Optional Verification Tests
P = Performance Verification Tests T = Troubleshooting